I enjoy and can get entertainment from all the content in the game in one aspect or another (except maybe k1)
I enjoy dom the most, however, that's because even though all paths can make sense, due to how the backstory is written the main plot makes more sense on dom.
This is what I consider the game's Achilles' heel. It's not good to write a story like this with a "true" path and a "fail" path but that seems to be the way the game is presented.
What I really enjoy on sub path is that it still somewhat maintains the "dual protagonist" approach from the beginning of the game. Kain is still the main character but Olivia is still a major factor.
As time goes on in the dom path you see and choose less involving Olivia, probably because strict ardent dom players don't like seeing her squish people and throw them into lion pits (their loss). She becomes "just another Karlsson".